Model Number: usb, usb c hub Funtion: None Standard: USB 2.0 Ports: 4Interface Type: USB 2.0 Material: Aluminium alloy colour: grey Package Contents: 1 x 4Ports USB Docking Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. [Strong compatibility and easy to use]: Completely plug and play, no driver required. Compatible for 10/8/8.1/7 / Vista / XP and , Linux and Chrome OS. (USB 3.0 are backward compatible with USB 2.0 and USB 1.1.) [Excellent Technical Design]: Aluminum alloy friction material, high texture, fast heat dissipation. The built-in advanced chip avoids over-current, over-voltage, short circuit and high temperature, protecting your precious data and USB gadgets. [WIDE APPLICATION]: 7-port USB extender is suitable for various devices: laptop, computer tower, , , flash drive, keyboard, mouse, card reader, hard disk, mobile phone OTG adapter, printer, camera, USB fan or other USB peripherals. [7 Ports Simultaneously]: This USB port extender provides stable performance for laptop, can work 7 ports at the same time without any pressure, and keep the temperature in the medium range. Perfectly solve the problem of insufficient USB interface of the device. [7 in 1 High Speed Data Hub]: USB 3.0 X1 + USB 2.0 X6. Full USB 3.0 SuperSpeed data transfer up to 5Gbps, 10 times faster than USB 2.0. Transfer files, HD and songs to USB devices in seconds. [Charging is not supported]